11th week of 2009 patent applcation highlights part 20 |
Patent application number | Title | Published |
20090066287 | Business Methods in a Power Aggregation System for Distributed Electric Resources - Systems and methods are described for a power aggregation system. In one implementation, a method includes determining a level of renewable energy on a power grid, determining a price of electricity on the power grid, and scheduling a charging of an electric resource connected to the power grid as a function of the price of electricity on the power grid and the level of renewable energy on the power grid. | 2009-03-12 |
20090066288 | BATTERY CHARGER WITH WIND TUNNEL COOLING - A battery charging system which includes a main housing with a main chamber defined by a base, an end panel mounted on each end of the base, and a cover enclosing the end panels. At least one battery charging connector is connected to the housing. A power supply is connected to the at least one battery charging connector, where the power supply provides a battery charging electrical power to the at least one battery charging connector. The power supply has at least one heat generating electrical device. A tunnel is formed at least partially within the main chamber and extends between the end panels in the main chamber. At least one heat generating electrical device at least partially extends into the tunnel to be exposed to air in the tunnel to cool the heat generating electrical device. | 2009-03-12 |
20090066289 | BATTERY CHARGER WITH A PLANAR BUS - A battery charging system which includes an input circuit configured to receive an input power and provide an output power on a first output terminal and a second output terminal. An output circuit has a first input terminal connected to the first output terminal and a second input terminal connected to the second output terminal to receive the output power and configured to condition the output power for a battery charging process. A first conductive plate with a first bus surface extends between the first input terminal and the first output terminal. An insulator plate has a first insulator surface disposed in an abutting relationship with the first bus surface and a second insulator surface. A second conductive plate has a second bus surface which extend between the second input terminal and the second output terminal and is disposed in an abutting relationship with the second insulator surface. | 2009-03-12 |
20090066290 | BATTERY CHARGER WITH HIGH FREQUENCY TRANSFORMER - A battery-charging system includes a power supply having a high-frequency transformer and is configured to deliver a battery charging power to charge at least one battery. The high-frequency transformer has a bobbin including an elongated top and bottom surfaces and first and second substantially semi-circular end surfaces connecting the top surface with the bottom surface to form an elongated first coil winding surface having a central axis. A first coil is wound around the first coil winding surface, and a second coil is magnetically coupled to the first coil and wound thereto. | 2009-03-12 |
20090066291 | DISTRIBUTED ENERGY STORAGE CONTROL SYSTEM - A Distributed Energy Storage Control System (DESCS) comprised of one or a plurality of identical BMS (Battery Management System) battery unit ( | 2009-03-12 |
20090066292 | BATTERY STRUCTURE AND CHARGING DEVICE ADAPTED FOR THE BATTERY STRUCTURE - A battery structure and a charging device adapted for the battery structure are provided. The battery structure comprises N battery cells, (N−1) movable connectors, and a protection device, wherein N is a positive integer greater than one. The charging device comprises an open circuit device and a power supply. The N battery cells are arranged next to each other, and each battery cell has two junctions. When the battery structure is discharging, each movable connector electrically connects the two adjacent junctions of the every two adjacent battery cells, with all the battery cells cascaded. When the battery structure is charged by the charging device, the open circuit device will enable the movable connector to disconnect the two adjacent junctions of the two adjacent battery cells so that there would be open circuits between every two adjacent battery cells. Then, the 2N charging junctions of the power supply charge the junctions of each battery cell individually. | 2009-03-12 |
20090066293 | VOLTAGE COMPARISON CIRCUIT - A voltage comparison circuit makes a comparison between a first voltage and a second voltage. A resistor and a constant current source are provided in series between the first voltage and the ground voltage. A comparator receives the second voltage via one input terminal (non-inverting input terminal), and the voltage at a connection node between the aforementioned resistor and the constant current source via the other input terminal (inverting terminal). The first voltage is preferably used as the power supply voltage for the comparator. | 2009-03-12 |
20090066294 | Dynamic power recharge management for a handheld measurement system - The present invention provides a method and system suitable for managing battery power recharging of a handheld measurement system that combines a handheld computer or PDA and a measurement sled. The software consistently monitors both the charge levels of the PDA and sled during recharging by monitoring a difference in recharge needs to give priority to either the handheld computer and/or sled for recharging wherein a recharge need is determined by monitoring a charge level of a corresponding device wherein the charge level is compared to a predetermined threshold level that is set within a sled's microcontroller-based software. Thus, as one of the charge levels passes above its corresponding charge threshold recharge needs may become equal commencing simultaneous recharge at the latter porting of system recharging. This allows for the low charge levels to be exclusively recharged from the external power source at the beginning of the recharge cycle making for a time efficient recharge cycle. | 2009-03-12 |
20090066295 | METHOD FOR CHARGING NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A method for charging a non-aqueous electrolyte secondary battery including the step of repeating pulse charging and charging pause, in which a pulse charging time is arbitrarily set between a lower limit value and an upper limit value, the lower limit value being an inverse time Tx of a frequency Fx of the high frequency side at which an imaginary part of an alternating current impedance of the non-aqueous electrolyte secondary battery is a first local maximum value, or of a frequency adjacent to Fx, and the upper limit value being an inverse time Ty of a frequency Fy at the low frequency side at which an imaginary part of the alternating current impedance of the non-aqueous electrolyte secondary battery is a second local maximum value, or of a frequency adjacent to Fy. | 2009-03-12 |
20090066296 | System and Method for Charging Plural Information Handling System Batteries - Plural batteries installed in an information handling system are simultaneously charged in a constant current mode to a predetermined charge and then in a constant voltage mode to a full charge to provide a reduced charge time and improved battery life. A current regulator integrated in a battery casing monitors current applied at the battery to maintain constant voltage charging. Voltage to ground of the other batteries is monitored to adjust current at those batteries where voltages in all of the battery cells are maintained substantially equal during charging. | 2009-03-12 |
20090066297 | Power Generation Apparatus Using AC Energization Synchronous Generator And Method Of Controlling The Same - A power generation apparatus and method includes an AC energization synchronous generator, a switching device which connects to a network disposed on a stator side of the AC energization synchronous generator, an energizing device which applies a variable frequency AC to a secondary winding of the AC energization synchronous generator, and a first voltage detection unit which detects a voltage of the switching device on the stator side. A rotational frequency of the AC energization synchronous generator is estimated or calculated based on a frequency of a stator side voltage of the switching device, while the switching device is open. | 2009-03-12 |
20090066298 | ELECTROSTATIC GENERATOR/MOTOR - A sub-module consists of a set of two outer sets of stationary fan-blade-shaped sectors. These outer sectors include conductive material and are maintained at ground potential in several examples. Located midway between them is a set of stationary sector plates with each plate being electrically insulated from the others. An example provides that the inner sector plates are connected together alternately, forming two groups of parallel-connected condensers that are then separately connected, through high charging circuit resistances, to a source of DC potential with respect to ground, with an additional connecting lead being provided for each group to connect their output as an AC output to a load. These same leads can he used, when connected to a driver circuit, to produce motor action. | 2009-03-12 |
20090066299 | SEMICONDUCTOR INTEGRATED CIRCUIT AND METHOD OF CONTROLLING MEMS-TYPE VARIABLE CAPACITANCE CAPACITOR - A first pump circuit generates a first voltage for decreasing the distance between primary electrodes. The first voltage is limited to a predetermined limit by a first limiter circuit. A second pump circuit generates a second voltage for keeping the distance between the primary electrodes constant. A third pump circuit generates the second voltage and has a supplying capacity smaller than the first one. The second voltage is limited by second and third limiter circuits. A ripple capacitor is charged up to the second voltage by the second pump circuit and the second limiter circuit within a period of time the first voltage is being generated. When a supplying voltage of the first pump circuit reaches to the first voltage, and a deformation stops, the second voltage is supplied by the third pump circuit and the third limiter circuit instead of the second pump circuit and the second limiter circuit. | 2009-03-12 |
20090066300 | Power Converter Employing a Micromagnetic Device - A power converter including a power train, a controller and a driver. In one embodiment, the power train includes a switch that conducts for a duty cycle and provides a regulated output characteristic for the power converter, and a micromagnetic device. The micromagnetic device includes a first conductive winding layer selectively formed above a first seed layer, and first and second magnetic core layers formed thereabove. The micromagnetic device also includes a second seed layer formed above the second magnetic core layer, and a second conductive winding layer formed above the second seed layer and in vias to the first conductive winding layer. The first and second conductive winding layers form a winding for the micromagnetic device. The controller provides a signal to control the duty cycle of the switch, and the driver provides a drive signal to the switch as a function of the signal from the controller. | 2009-03-12 |
20090066301 | Buck-boost switching regulator - A buck-boost switching regulator which includes a first switch, a first diode, an inductor, a second switch, a second diode, and a controller for controlling the first switch and the second switch, the controller being configured to receive a current signal indicative of a inductor current flowing in the inductor, and generating a signal indicative of an average current flowing in the inductor, the average current being utilized to control the first switch and the second switch, wherein the controller includes a first compensator circuit for outputting a voltage error signal, a second compensator circuit for outputting a current error signal and a modulator circuit to output a first control signal to control the first switch and a second control switch to control the second switch. | 2009-03-12 |
20090066302 | BOOST DC/DC CONVERTER - A disclosed boost DC/DC converter includes a direct-current power source, of which a negative terminal is connected to ground; an inductor connected to a positive terminal of the direct-current power source; a first switching element connected between the inductor and ground and having a control node for controlling an on-resistance thereof; a second switching element connected in series to the inductor and having a control node for controlling an on-resistance thereof; a smoothing capacitor connected between the second switching element and ground; a switching circuit configured to select a voltage of the direct-current power source during a start-up phase, and to select an output voltage of the smoothing capacitor after the start-up phase; and a control unit configured to cause the switching circuit to apply the voltage selected by the switching circuit to the control node of each of the first and the second switching elements at a predetermined cycle. | 2009-03-12 |
20090066303 | VOLTAGE REGULATOR WITH TESTABLE THRESHOLDS - A system and method for determining over-voltage and under-voltage thresholds in a voltage regulator are disclosed herein. A voltage regulator includes an over-voltage detector and an under-voltage detector that determine whether the voltage regulator's regulated output voltage is above or below predetermined over-voltage and under-voltage thresholds respectively. The over-voltage detector connects to an output port that provides a signal indicating that the regulated voltage output is greater than the predetermined over-voltage threshold and not lower than the predetermined under-voltage threshold. The under-voltage detector connects to an output port that provides a signal indicating that the regulated voltage output is lower than the predetermined under-voltage threshold and not greater than the predetermined over-voltage threshold. The voltage regulator also includes an input port that provides a test signal for testing the voltage levels of the over-voltage threshold and the under-voltage threshold. | 2009-03-12 |
20090066304 | Switching Regulator And Electronic Device Therewith - A switching regulator according to the invention includes: an output switching element; an output feedback circuit generating an error voltage (Verr) according to an error between an output voltage (Vout) and a target voltage; a switching control circuit turning on and off the output switching element based on the error voltage (Verr); a short-circuit current protection circuit that includes a first comparator (CMP | 2009-03-12 |
20090066305 | SWITCHING REGULATOR - A switching regulator includes a first switch, an inductor, a second switch, a controller to control a switching operation by switching the first switch and switching the second switch complementally to the first switch, and a reverse current detector to detect a reverse current that flows from an output terminal toward the second switch. The reverse current detector generates a proportional voltage that is proportional to a voltage at a junction node between the second switch and the inductor, and detects a generation or an indication of the reverse current based on the proportional voltage. The controller turns the second switch off to create a shutdown state when the reverse current detector detects the generation or the indication of the reverse current. | 2009-03-12 |
20090066306 | CONSTANT VOLTAGE CIRCUIT - A constant voltage circuit converts a voltage input to an input terminal and outputs a predetermined constant voltage from an output terminal. The constant voltage circuit includes an output transistor that outputs an electrical current corresponding to a control signal input thereto to the output terminal, a differential amplifier circuit that outputs the control signal according to a difference between a comparative voltage proportional to the output voltage and a predetermined reference voltage, a current mirror circuit that serves as a load of a pair of input transistors included in the differential amplifier circuit, and a voltage comparator that compares a voltage at a control electrode of a transistor included in the current mirror circuit and a voltage of the control signal. The differential amplifier circuit controls a bias electrical current supplied to the pair of input transistors according to a comparison result of the voltage comparison. | 2009-03-12 |
20090066307 | Efficient voltage converter methods and structures - Voltage converter are provided for efficient generation of voltage signals in a load. The converters are formed with a group of inductors and at least two sets of buck and sync transistors that are arranged with the group so that conducted currents through each of the sets are directed through a respective one of the inductors and further directed to magnetically couple induced currents in the respective inductor of at least an associated one of the sets. Efficiency is particularly enhanced with an operational mode that is directed to light load conditions. In this mode and in at least a selected one of the sets, the buck transistor is turned off throughout the operational mode and the sync transistor is turned off for at least the time that an associated buck transistor is turned on in an associated set which couples induced currents in the respective inductor of the selected set. Preferably, the sync transistor is turned off at the end of a selected time span that begins when the associated buck transistor is turned off. | 2009-03-12 |
20090066308 | Switched Mode Power Supply Having Variable Minimum Switching Frequency - In a switched mode power supply (SMPS) that regulates an output voltage in response to load conditions by switching an inductor circuit between a supply voltage and ground at a switching frequency, under light loading conditions, the switching frequency of the SMPS is reduced down to a variable minimum switching frequency sufficiently high to avoid audible noise generation. | 2009-03-12 |
20090066309 | SWITCHING REGULATOR - A switching regulator is disclosed that uses a non-linear amplifier and is capable of PWM control operation at high frequencies with a simple circuit configuration and without increasing current consumption. The switching regulator includes a switching unit, an inductor, a rectification unit, and a control circuit that controls the switching of the switching unit so that the output voltage of the switching regulator becomes a constant voltage. The control circuit uses a pulse signal to perform PWM control on the switching unit. The pulse signal is generated by amplifying an error voltage between the output voltage and a reference voltage at a gain variable in response to a voltage of a saw-tooth waveform signal. | 2009-03-12 |
20090066310 | INTERNAL VOLTAGE GENERATION CIRCUIT WITH CONTROLLED ENABLE PULSE WIDTH - The internal voltage generation circuit includes an internal voltage enable signal generation unit generating an internal voltage enable signal whose enable pulse width is controlled according to an external voltage. An internal voltage generation unit generates an internal voltage corresponding to a reference voltage according to the internal voltage enable signal. The internal voltage generation circuit generates an internal voltage according to an internal voltage enable signal whose enable pulse width is controlled in response to an external voltage, and thus current consumption is improved, and the internal voltage generation circuit provides a stable internal voltage. | 2009-03-12 |
20090066311 | PRE-CONDITIONER WITH LOW VOLTAGE COMPONENTS - A pre-conditioner circuit comprising first and second pre-conditioner modules ( | 2009-03-12 |
20090066312 | Reference voltage generation circuit, drive circuit, light emitting diode head, and image forming apparatus - A reference voltage generation circuit for outputting a reference voltage from an input voltage includes a specific voltage output unit for outputting a specific voltage from the input voltage; a first circuit section for outputting the reference voltage with a positive temperature property from the specific voltage output from the specific voltage output unit; and a second circuit section for setting a level of the reference voltage output from the first circuit section. The specific voltage output unit is formed of a regulator circuit having a first terminal connected to a power source. The first circuit section is formed of a bi-polar transistor element connected to a second terminal of the regulator circuit. The second circuit section is formed of a resistor connected to the second terminal of the regulator circuit, a collector terminal of the bi-polar transistor element, and an emitter terminal of the bi-polar transistor element. | 2009-03-12 |
20090066313 | Reference voltage circuit compensated for temprature non-linearity - Disclosed is a reference voltage circuit including first, second and third current-to-voltage converters, a current mirror circuit that supplies the currents to the first, second and third current-to-voltage converters, and a control unit that exercises control so that a preset output voltage of the first current-to-voltage converter will be equal to a preset output voltage of the second current-to-voltage converter. A preset voltage of the third current-to-voltage converter is output as a reference voltage. The first current-to-voltage converter includes a diode and a resistor connected in parallel with the diode. The second current-to-voltage converter includes a plurality of diodes, connected in parallel with one another, a resistor connected in parallel with the parallel-connected diodes, a resistor connected in series with the parallel connection of the diodes and the resistor, and a resistor connected in parallel with the serial connection of the parallel circuit and the resistor. The third current-to-voltage converter includes a resistor. | 2009-03-12 |
20090066314 | CURRENT MIRROR SEMICONDUCTOR DEVICE AND A LAYOUT METHOD OF THE SAME - A semiconductor device and a layout method of the same reduce a mismatch in a semiconductor device. The semiconductor device includes a first transistor unit providing a first path of current and a second transistor unit designed in a mirror structure to the first transistor unit and providing a second path of current. The layout of the second transistor unit has a shape identical to the first transistor unit and shifted in a first direction. The layout of the semiconductor device reduces a mismatch of the transistors occurring when masks are combined, and thereby reduces their offset. | 2009-03-12 |
20090066315 | DYNAMIC MODULATION FOR MULTIPLEXATION OF MICROFLUIDIC AND NANOFLUIDIC BASED BIOSENSORS - The present invention generally relates to a method for rapidly counting micron and/or submicron particles by passing such particles through any of a plurality of microfluidic channels simultaneously with an ion current and measuring the signal generated thereby. The present invention also generally relates to a device for practicing the method of the present invention. Some embodiments can include methods and/or devices for distinguishing between and counting particles in mixtures. Still other embodiments can include methods and/or devices for identifying and/or counting bioparticles and/or bioactive particles such as pollen. | 2009-03-12 |
20090066316 | Electrokinetic Method for Determining the Electrostatic Charge State of a Porous Membrane During Filtering and the Use Thereof - The invention relates to an electrokinetic method for determining the electrostatic charge state of a porous membrane during filtering by measuring trans-membrane variations of a flow potential. The use of the inventive method for controlling and characterising the filtering membrane cleaning efficiency is also disclosed. | 2009-03-12 |
20090066317 | Transformer Meter and System for Using Same - The present invention is a meter for recording voltage and current on a transformer. The device has a housing with a body portion and a lever portion, the lever portion being movable between a closed position wherein the lever portion abuts the body portion and an open position wherein the lever portion is positioned away from the body portion. The device includes a pair of current sensors each current sensor being divided into two corresponding sensor fractions with one fraction of each sensor formed on the body portion of the housing and the other corresponding fraction formed on the lever portion of the housing. The fractions of each sensors are constructed such that each of the current sensors have a central opening dimensioned to receive one of the transformer terminals when the lever portion of the housing is in its first position. The current sensors are positioned on the housing such that the meter can be mounted to the terminals of the transformer. The device also includes two voltage leads which can be attached to the transformers terminals. An instrumentation module is contained in the housing and is coupled to the current sensors and the voltage leads, the instrumentation module being adapted and configured to record voltage and current measurements from the current sensors and voltage leads. The instrumentation module includes a signal processing module for processing the voltage and current signals to provide other information such as energy and accumulated in-phase current | 2009-03-12 |
20090066318 | SENSOR DEVICE WITH ALTERNATING EXCITATION FIELDS - The invention relates to a magnetic sensor device comprising excitation wires ( | 2009-03-12 |
20090066319 | MAGNETIC ENCODER WITH SEPARATION OF SENSOR FROM THE ENVIRONMENT - A magnetic encoder for detecting for example movement of a continuous pipe, wire line, pipe joints, rod, etc. into a well includes a wheel in the contaminated environment of the well with a permanent magnet mounted on the wheel such that the magnet moves past a sensing location each time the wheel rotates to provide a count representative of the rotation of the wheel and thus if the forwarding distance of the tubing. A sensor responsive to presence of a field generated by the presence of the magnet is mounted in a cylinder defining a separate environment for the sensor inside the cylinder with a stainless steel end dividing wall separating the wheel from the sensor with a ferro-magnetic pin extending through the dividing wall such that the presence of the magnet at the sensing location causes actuation of the sensor. | 2009-03-12 |
20090066320 | DEADBOLT SENSOR FOR SECURITY SYSTEMS - The current invention provides an improved security system sensor assembly. The sensor assembly of the current invention reduces installation costs when adding a security system. to an existing structure by eliminating the need to install magnets on existing doors. The sensor assembly of the current invention allows the security system to monitor the locked or unlocked status of each monitored door by sensing when a deadbolt lock is in the locked position. Additionally, the sensor assembly will alert the security system when a deadbolt lock is moved from the locked position without authorization. | 2009-03-12 |
20090066321 | LOCATING STATIONARY MAGNETIC OBJECTS - A technique for locating stationary magnetic objects comprises placing magnetic sensors on a movable platform; for each sensor, measuring a total magnetic field signal in an area of detection; using the sensors to identify a line upon which a target stationary magnetic object is located; and fixing a location of the object by moving the platform in substantially straight lines until the object is detected by at least two of the sensors; using the measured signals to determine a first path on which the object lies; positioning the sensors so that a line connecting two of the sensors intersects the first path on which the object lies; moving the platform along a second path substantially parallel to the first path; recording two positions at which at least two of the sensors detect a maximum total magnetic field signal from the object; and identifying a third path through the two positions. | 2009-03-12 |
20090066322 | LINEAR DISPLACEMENT DETECTION APPARATUS - A linear displacement detection apparatus is configured to convert a linear displacement of a shaft into a rotary displacement of a sensor rotor of a rotary displacement sensor so as to detect the linear displacement. A sensor lever is fixed to the sensor rotor and rotatable about an axis of the sensor rotor. A sensor rod is located closer to the shaft than the sensor lever and configured to transmit the linear displacement of the shaft to the sensor lever. A bearing member is located closer to the shaft than the sensor rod and configured to release rocking of the shaft. | 2009-03-12 |
20090066323 | Antenna Orientation Sensor and Method for Determining Orientation - An antenna orientation sensor, having a base, a pivoting support coupled to the base. An actuator operable to move the pivoting support through a calibration movement with respect to the base. A, for example, three axis magnetic sensor on the pivoting support and a position sensor operable to sense the position of the pivoting support within the calibration movement. | 2009-03-12 |
20090066324 | Angular position detector and rotary electric device drive unit including the same - The invention provides an angular position detector that can be configured at low cost and that accurately detects the angular position of a rotor in a rotary electric device and permits reliable control thereof even when the rotary electric device runs at a high speed. The angular position detector includes a resolver that outputs a signal indicating the rotational angle of the rotor and a signal processing circuit that calculates the rotational angle of the rotor based on the signal output from the resolver. The signal processing circuit samples output signals from the resolver at predetermined intervals and converts the signal into a digital signal. By calculating the angular speed according to the digital signal output from the resolver, the computation process is simpler, and can be performed using a microcomputer with less processing power, which reduces the component costs for the angular position detector. | 2009-03-12 |
20090066325 | ROTATION ANGLE DETECTION DEVICE - A rotation angle detection device includes a rotary body rotating in linked motion with a steering wheel; a detector rotating in linked motion with the rotary body; a magnetic detection element placed on a wiring board and detecting magnetism of a magnet placed at the detector; a control part for detecting a rotation angle of the rotary body based on a detection signal from the magnetic detection element; and a holder latched onto the wiring board and rotatably holding the detector. | 2009-03-12 |
20090066326 | MAGNETIC DEVICE - A magnetic device comprises a magnetic element, a first magnetic field applying means, and a second magnetic field applying means. The first and second magnetic field applying means are disposed on mutually opposite sides of the magnetic element. The magnetic element is, for example, an element in which a soft magnetic film is formed in a meandering shape on a nonmagnetic substrate. The first and second magnetic field applying means create a magnetic field in one direction from the first magnetic field applying means toward the second magnetic field applying means. The bias magnetic field in one direction is thereby applied to the entire soft magnetic film in the magnetic element disposed between the first and second magnetic field applying means. | 2009-03-12 |
20090066327 | METHOD AND COMPUTER PROGRAM PRODUCT FOR ESTIMATING TRUE INTRINSIC RELAXATION TIME AND INTERNAL GRADIENT FROM MULTIGRADIENT NMR LOGGING - A method and a computer program product for estimating the true intrinsic relaxation time T | 2009-03-12 |
20090066328 | Nuclear Magnetic Resonance Imaging Apparatus and Method - A control means controls an imaging means for taking an image of a test object by a magnetic resonance, the test object being placed in an imaging space, and a transfer means that moves the test object, and on the basis of a difference (moving distance) between a position of the transfer means at the time of receiving a command of pausing the imaging and a position of the transfer means at the time of resuming the imaging, the control means controls the position of the transfer means or the position for imaging at the time of resuming, in such a manner that missing of data | 2009-03-12 |
20090066329 | MAGNETIC RESONANCE IMAGING APPARATUS AND NAVIGATOR DATA ANALYZING METHOD - A magnetic resonance imaging apparatus executes scans for executing a navigator sequence for acquiring as navigator data a magnetic resonance signal from a navigator area containing tissues body-moved in a subject and executing an imaging sequence for acquiring a magnetic resonance signal from an imaging area as imaging data at the subject, thereby to generate an image with respect to the imaging area. The magnetic resonance imaging apparatus includes, a phase profile generating part which generates a phase profile so as to show a relationship between a phase of the navigator data and a position of the navigator area, a phase correcting part which corrects folding back of the phase profile generated by the phase profile generating part, and a position detecting part which detects a position of a tissue body-moved in the navigator area, based on the phase profile corrected by the phase correcting part. | 2009-03-12 |
20090066330 | NMR MEASUREMENT OF WAX APPEARANCE IN FLUIDS - A method for determining a wax appearance temperature of a fluid includes obtaining nuclear magnetic resonance (NMR) measurements of the fluid at a plurality of temperatures; deriving a NMR parameter from each of the NMR measurements; and determining the wax appearance temperature by analyzing the NMR parameter as a function of temperature. An apparatus for detecting wax appearance in a fluid includes a sample cell for holding a fluid for nuclear magnetic resonance (NMR) measurements at a plurality of temperatures; a temperature measuring device disposed proximate the sample cell; a magnet for polarizing molecules in the fluid in the sample cell; at least one radiofrequency (RF) coil for generating pulses of magnetic field and for detecting NMR signals; and circuitry for controlling and measuring the temperature of the fluid in the sample cell and for obtaining NMR measurements. | 2009-03-12 |
20090066331 | Probe, system and method suitable for unilateral nuclear magnetic resonance - A probe suitable for use in unilateral nuclear magnetic resonance imaging and adapted to be embedded in a sample to be analysed, the probe comprising; a static magnetic field generator; a radiofrequency magnetic field generator adjacent to the static magnetic field generator; a circuit controlling the frequency response of the radiofrequency magnetic field generator, adjacent to the static magnetic field generator; an input cable coupled to the frequency control circuit and the frequency control circuit coupled to the radiofrequency magnetic field generator. | 2009-03-12 |
20090066332 | MAGNETIC RESONANCE IMAGING APPARATUS AND GRADIENT MAGNETIC FIELD COIL - An MRI apparatus excellent in magnetic field generation efficiency is provided. According to this invention, a main coil ( | 2009-03-12 |
20090066333 | NMR Sample Tube - An NMR sample tube for NMR measurement is provided. It includes a plug on both sides or one side of a sample to be measured, in an axial direction of the sample tube. The plug is adjusted to have magnetic susceptibility equal to or substantially equal to that of the sample. A whole shape of the plug and a sample space together is axisymmetric about an axis of the sample tube, and a surface of the plug not abutting the sample space bulges in a direction away from the sample space. | 2009-03-12 |
20090066334 | Short Normal Electrical Measurement Using an EM-Transmitter - A method and apparatus for determination of a formation resistivity property in which an impedance of a downhole antenna that includes an upper gap sub insulated from a lower sub is used as an estimate of the formation resistivity property. | 2009-03-12 |
20090066335 | Method for Fast Measurement of the Saturation and the Resistivity of a Porous Medium - A method for measuring the conducting fluid saturation and the resistivity of a porous medium have application to development of underground geological formations. A solid sample is extracted from the medium and placed in a centrifugation cell, beside a second sample for limiting the capillary in the first sample. The two samples are partly desaturated by subjecting them to centrifugation. The resistivity of the sample is measured by placing it in a radial-electrode resistivity measurement cell. The saturation of the sample is then determined by measuring its nuclear magnetization by means of an NMR device. Repeating this procedure for different centrifugation velocities provide resistivity and saturation pairs allowing a relationship between saturation and resistivity to be estimated. | 2009-03-12 |
20090066336 | Apparatus and Method for Electrically Investigating a Borehole - An apparatus used in electrical investigation of geological formations GF surrounding a borehole BH, comprises:
| 2009-03-12 |
20090066337 | METHOD FOR DETERMINING VALVE DEGRADATION - A method for determining degraded valve operation. According to the method, valve degradation can be determined from the duration of a spark event. This method allows for the determination of both intake and exhaust valve degradation. | 2009-03-12 |
20090066338 | Battery Voltage Detecting Circuit - A battery voltage detecting circuit includes: a first capacitor having one end connected to one input terminal of an operational amplifier; a second capacitor having one end connected to an output terminal of the operational amplifier and the other end connected to the one input terminal of the operational amplifier; a third capacitor having one end connected to the other input terminal of the operational amplifier; a fourth capacitor having one end applied with a reference voltage and the other end connected to the other input terminal of the operational amplifier; and a switching circuit configured to electrically connect the one input terminal of the operational amplifier to the one end of the first capacitor after the transient current has stopped flowing. | 2009-03-12 |
20090066339 | Assay Cartridges and Methods of Using the Same - Assay modules, preferably assay cartridges, are described as are reader apparatuses which may be used to control aspects of module operation. The modules preferably comprise a detection chamber with integrated electrodes that may be used for carrying out electrode induced luminescence measurements. Methods are described for immobilizing assay reagents in a controlled fashion on these electrodes and other surfaces. Assay modules and cartridges are also described that have a detection chamber, preferably having integrated electrodes, and other fluidic components which may include sample chambers, waste chambers, conduits, vents, bubble traps, reagent chambers, dry reagent pill zones and the like. In certain preferred embodiments, these modules are adapted to receive and analyze a sample collected on an applicator stick. | 2009-03-12 |
20090066340 | TEST APPARATUS AND CONNECTING APPARATUS - Provided is a test apparatus that tests a device under test, including a test head that generates a test signal for testing the device under test; a socket board onto which is mounted the device under test, that transmits signals between the test head and the device under test; a plurality of actuators that are disposed on a lower surface of the socket board to correspond one-to-one with support positions thereof, and that each have a state thereof changed according to a control signal supplied thereto to independently move the corresponding support position in a direction vertical to the lower surface of the socket board; and a connection control section that supplies a first control signal to each actuator to set each actuator to be in the same state, and thereafter supplies commonly to each actuator a second control signal that gradually decreases an apparatus separation distance between the socket board and the test head. | 2009-03-12 |
20090066341 | MEDICAL DEVICE AND TEST METHOD FOR MEDICAL DEVICE - A medical device of the present invention is a medical device having a plurality of wiring boards disposed in a housing, each of which has a board terminal for testing the wiring board, comprising: one or more external terminals provided on the outer surface of the housing and connected to one or more of the board terminals; and one or more block portions provided between the respective board terminals, and the respective external terminals and blocking writing of data to the wiring boards. | 2009-03-12 |
20090066342 | METHOD AND APPARATUS FOR A VOLTAGE/CURRENT PROBE TEST ARRANGEMENTS - A diagnostic tool for performing electrical measurements to calibrate a plasma processing chamber probe is provided. The diagnostic tool includes an RF generator. The diagnostic tool also includes a first impedance circuit. The first impedance circuit is a voltage-load network, configured to deliver RF voltage outputs from the RF generator for voltage measurements when RF power from the RF generator is delivered to the first impedance circuit. The diagnostic tool further includes a second impedance circuit. The second impedance circuit is a current-load network, configured to deliver RF current outputs from the RF generator for current measurements when the RF power from the RF generator is delivered to the second impedance circuit. The diagnostic tool further includes a coaxial switch network arrangement configured to provide switchable RF delivery paths to deliver the RF power from the RF generator to one of the first impedance circuit and the second impedance circuit. | 2009-03-12 |
20090066343 | SYSTEM AND METHOD FOR COMPUTER NOTEBOOOK ELECTROMAGNETIC COMPATIBILITY ANALYSIS - A system and method for antenna analysis and electromagnetic compatibility testing in a wireless device utilizes a “parent” device that undergoes rigorous conventional testing. A “child” device having similar components may thereafter undergo abbreviated testing. Because the Total Isotropic Sensitivity of the parent device is known, testing may be performed on the child device to infer equivalence to the parent's TIS performance using the abbreviated test techniques. | 2009-03-12 |
20090066344 | APPARATUSES AND METHODS FOR NONDESTRUCTIVE MICROWAVE MEASUREMENT OF DRY AND WET FILM THICKNESS - Wet and dry film thickness can be measured non-invasively on structures, such as surfaces associated with vessels, aircraft and buildings, using calibrated microwave sensors. The film is measured by directing microwave energy toward the film. The microwave energy passes through the film and is reflected by a reflective or semi-reflective substrate surface below the film. Properties of the reflected wave are compared with properties of reflected waves that were passed through calibration samples of known thicknesses to determine the unknown thickness of the film. In some embodiments, one or more sensors are maintained at a fixed altitude above the conductive/semi-conductive substrate for measurement, and in other embodiments, one or more sensors are maintained at a fixed altitude above the film. In one embodiment, sensors are associated with a coating applicator, with a first sensor preceding the applicator and a second sensor following the applicator to measure the thickness of the film applied by the applicator by comparing measurements before and after coating. | 2009-03-12 |
20090066345 | SENSOR HAVING ORGANIC FIELD EFFECT TRANSISTORS - A force sensor based on an organic field effect transistor applied on a substrate is disclosed. In one embodiment, a mechanical force acting on the transistor causes a change in its source-drain voltage or its source-drain current which corresponds to said force and which can in each case be detected as measurement quantity for the acting force, a diaphragm-based pressure sensor that uses a force sensor of this type, a one- or two-dimensional position sensor that uses a multiplicity of force sensors of this type, and a fingerprint sensor that uses a multiplicity of such force sensors. | 2009-03-12 |
20090066346 | DETECTION CIRCUIT DEVICE AND METHOD FOR DETECTING THE PRESENCE OF AN OBJECT IN THE VICINITY OF A MOTOR VEHICLE - The invention relates to a circuit device and a method for detecting the presence of an object in the vicinity of a motor vehicle. The aim of the invention is to provide solutions which allow monitoring the vicinity of a motor vehicle with regard to the presence of an object. In particular, the aim of the invention is to provide solutions which allow detecting the approach of human body parts to danger-relevant structures, such as for example soft top devices, window openings, door openings and trunk lids, and taking the appropriate safety measures. According to the invention, this problem is solved by a motor vehicle that comprises a detection circuit with a first electrode system, a second electrode system and an alternative current generator for generating a potential difference between the two electrode systems, the first electrode system being arranged in the lower region of the vehicle for inputting the shift current events in the region supporting the vehicle. The detection circuit further comprises an evaluation device by means of which a feedback of the shift current events in the second electrode system is determined via the object to be detected. | 2009-03-12 |
20090066347 | BIOSENSOR AND A METHOD OF MEASURING A CONCENTRATION OF AN ANALYTE WITHIN A MEDIUM - A biosensor for measuring a concentration of an analyte within a medium includes an electrical charge storage and a resistive layer including an electrical resistance which changes upon contact with the analyte. The electrical charge storage includes a sensor electrode, and the resistive layer may be contacted with the medium and is arranged between the medium and the sensor electrode such that during contact with the medium, a number of the electrical charges stored in the electrical charge storage pass the resistive layer. | 2009-03-12 |
20090066348 | Apparatus and method for quantitative determination of target molecules - A nanoelectronic device for detecting target molecules is described. The device has an array of nanoscale wires serving as sensors of target molecules and electrical contacts, electrically contacting the nanowires at end regions of the nanoscale wires. The end regions are covered with an insulating material. The insulating material also defines a window region of the nanoscale wires, not covered by the insulating material. Probe molecules are located on the nanoscale wires along the window region. A microfluidic channel can also be provided, to allow flow of the target molecules. A method of fabricating the nanoelectronic device is also shown and described. | 2009-03-12 |
20090066349 | PROBE SYSTEM - A probe system including a body, a testing apparatus, a probe card, and a strengthening mechanism is provided. The testing apparatus is disposed above the body. The probe card is disposed between the testing apparatus and the body. The strengthening mechanism is disposed between the probe card and the testing apparatus to have the probe card leaned against it. The strengthening mechanism has at least one elastic element. | 2009-03-12 |
20090066350 | WIRELESS INTERFACE PROBE CARD FOR HIGH SPEED ONE-SHOT WAFER TEST AND SEMICONDUCTOR TESTING APPARATUS HAVING THE SAME - A wireless interface probe card includes a substrate member and a transmission member. The substrate member has a plurality of probe terminals arranged at a constant pitch. The probe terminals may directly contact a plurality of pads arranged at a constant pitch on each of a plurality of semiconductor chips arranged on a wafer to perform a test of the semiconductor chips arranged on the wafer. The transmission member is arranged on the substrate member, wirelessly receives a test signal and provides the received test signal to the pads of the wafer through the probe terminals, and wirelessly and externally transmits an electrical characteristic signal provided from the pads of the wafer through the probe terminals. | 2009-03-12 |
20090066351 | ELECTROCHEMICALLY FABRICATED MICROPROBES - Multilayer test probe structures are electrochemically fabricated via depositions of one or more materials in a plurality of overlaying and adhered layers. In some embodiments each probe structure may include a plurality of contact arms or contact tips that are used for contacting a specific pad or plurality of pads wherein the arms and/or tips are configured in such away so as to provide a scrubbing motion (e.g. a motion perpendicular to a primary relative movement motion between a probe carrier and the IC) as the probe element or array is made to contact an IC, or the like, and particularly when the motion between the probe or probes and the IC occurs primarily in a direction that is perpendicular to a plane of a surface of the IC. In some embodiments arrays of multiple probes are provided and even formed in desired relative position simultaneously. | 2009-03-12 |
20090066352 | Making And Using Carbon Nanotube Probes - Columns comprising a plurality of vertically aligned carbon nanotubes can be configured as electromechanical contact structures or probes. The columns can be grown on a sacrificial substrate and transferred to a product substrate, or the columns can be grown on the product substrate. The columns can be treated to enhance mechanical properties such as stiffness, electrical properties such as electrical conductivity, and/or physical contact characteristics. The columns can be mechanically tuned to have predetermined spring properties. The columns can be used as electromechanical probes, for example, to contact and test electronic devices such as semiconductor dies, and the columns can make unique marks on terminals of the electronic devices. | 2009-03-12 |
20090066353 | PROBE ASSEMBLIES AND METHODS FOR HOUSING AND PROVIDING ELECTRICAL CONTACT TO PLANAR OR CHIP-TYPE SENSORS AND HEATERS - A probe assembly for planar or chip-type sensors and heaters, which includes a probe housing having a tip end and a feed-through end, and a sensor or heater element within the housing which includes electrode pads and has a bottom surface that is in thermal contact with the probe tip. The assembly includes a means of applying a first compressive force to the element such that thermal contact between its bottom surface and the probe tip is maintained. Electrical lead wires (ELWs) within the housing provide respective conductive paths between the electrode pads and the feed-through end, each ELW including at least one spring portion which provides a second compressive force that acts to maintain physical and electrical contact between the ELW and its respective electrode pad. The assembly is arranged such that the first compressive force is independent of the second compressive force. | 2009-03-12 |
20090066354 | Electrostatic Discharge Test System And Electrostatic Discharge Test Method - A method of conducting an electrostatic discharge test on an integrated circuit is described. The method comprises configuring a test board assembly to emulate characteristics of a system in which the integrated circuit is to be used, coupling the integrated circuit to the test board assembly, and applying an electrostatic discharge test signal of system-level type to the test board assembly. | 2009-03-12 |
20090066355 | Circuit Arrangement with Switchable Functionality and Electronic Component - A circuit with switchable functionality has a first integrated circuit, which has, in a first operating mode, full functionality and which has, in at least one other operating mode, a functionality which is reduced in comparison with the full functionality. The circuit further has an output terminal to which a coupling element can be coupled, an identification device which identifies whether a first supply potential has been applied to the output terminal via the coupling element and in this case produces a status signal with a first value and otherwise produces a status signal with a second value, a setting device, which sets the full or reduced functionality as a function of the value of the status signal in the first integrated circuit. The invention also relates to an electronic component having such a circuit arrangement. | 2009-03-12 |
20090066356 | METHOD AND APPARATUS FOR INTERROGATING AN ELECTRONIC COMPONENT - A method and apparatus for interrogating an electronic component, includes a body having an interface for an interrogating device to use as a conduit in reliably performing multiple discrete interrogations of the electronic component without the interrogating device physically touching the electronic component. | 2009-03-12 |
20090066357 | Method and apparatus for detecting impairment of a solar array - An apparatus for detecting an impairment of a solar array. The apparatus comprises an impairment detection module for performing a comparison of a power production profile and at least one reference profile, wherein the power production profile and the at least one reference profile are for at least one of the solar array, at least one solar subarray of the solar array, or at least one solar panel of the solar array. The apparatus determines, based on the comparison, whether the impairment exists. | 2009-03-12 |
20090066358 | METHODS AND APPARATUS FOR DETECTING DEFECTS IN INTERCONNECT STRUCTURES - In some aspects, a method is provided for detecting a void in a test structure that comprises (a) measuring a resistance of the test structure; (b) applying a stress to the test structure at increasing levels until at least one of: (i) the measured resistance of the test structure exceeds a predetermined resistance threshold; and (ii) the stress level reaches a predetermined stress maximum; (c) detecting a void if the measured resistance of the test structure exceeds the predetermined resistance threshold; and (d) determining that the test structure is void free if the stress level reaches the predetermined stress maximum without the measured resistance of the test structure exceeding the predetermined resistance threshold. Numerous other aspects are provided. | 2009-03-12 |
20090066359 | SEMICONDUCTOR DEVICE TEST SYSTEM HAVING REDUCED CURRENT LEAKAGE - A test circuit tests a device under test (DUT) uses a first switching device and a second switching device. The device under test (DUT) has a terminal for receiving a test signal. The first switching device has an output terminal for use in coupling the test signal to the terminal of the DUT when the DUT is being tested. The first switching device is high impedance when the DUT is not being tested. The second switching device is high impedance when the DUT is being tested and couples a bias control signal to the output terminal of the first switching device when the DUT is not being tested. The bias control signal substantially tracks the test signal. Leakage from the first switching device when other DUTs are being tested is greatly reduced because the bias control signal results in little or no bias across the first switching device. | 2009-03-12 |
20090066360 | METHOD FOR DETERMINING AN INDUCTANCE OF A MOTOR - The intention is to simplify the measurement of an inductance characteristic curve of a motor. To this end, provision is made for a current (i) having a non-periodic current offset component and a periodic current component to be injected into the motor's winding so that the motor accelerates. A corresponding voltage (u) across the winding is measured and a voltage interference component and a periodic voltage component are determined from the measurement. The inductance of the winding can finally be determined from these two components. It is thus possible to dispense with the operation of blocking the motor or to dispense with an expensive motor test rig in order to determine the inductance characteristic curve. | 2009-03-12 |
20090066361 | Semiconductor integrated circuit device and storage apparatus having the same - A semiconductor integrated circuit device includes: a first large scale integrated circuit including a plurality of first logical blocks; a programmable second large scale integrated circuit connected the first large scale integrated circuit and including a second logical block; a memory storing data for achieving the purposes of the first logical blocks; and a control unit that, when a failure is detected in any of the first logical blocks during the operation of the first large scale integrated circuit, writes the data for the faulty first logical block stored in the memory to the second logical block, and uses the second logical block in place of the faulty first logical block. | 2009-03-12 |
20090066362 | SEMICONDUCTOR INTEGRATED CIRCUIT - A semiconductor integrated circuit having a test circuit for inspecting states of connections between a plurality of pads and respective external terminals by bonding wires. The test circuit comprises, for each of a plurality of pads, a control terminal provided to receive a control signal of a logic level equal to the logic level of a signal applied to a corresponding one of the external terminals, an inverter which inverts the logic level on the control terminal, an inverted output terminal of the inverter being connected to the pad via a connection line; and an exclusive-NOR gate which outputs an exclusive NOR of the logic level on the connection line and the logic level on the control terminal. | 2009-03-12 |
20090066363 | Semiconductor memory device - A semiconductor memory device includes a code channel for outputting a plurality of code signals based on a code control signal inputted from an external source; a termination resistor decoder for decoding a chip selection signal, an on die termination (ODT) control signal and the plurality of code signals and outputting a plurality of selection signals based on decoded signals; and an ODT block for providing an output data pad with impedance of a termination resistor which is selected in response to the plurality of selection signals. | 2009-03-12 |
20090066364 | NONVOLATILE PROGRAMMABLE LOGIC CIRCUIT - A nonvolatile programmable logic circuit using a ferroelectric memory performs a nonvolatile memory function and an operation function without additional memory devices, thereby reducing power consumption. Also, a nonvolatile ferroelectric memory is applied to a FPGA (Field Programmable Gate Array), thereby preventing leakage of internal data and reducing the area of a chip. | 2009-03-12 |
20090066365 | Reprogrammable three dimensional field programmable gate arrays - 3D FPGAs are elucidated with (a) interlayer information sharing, (b) intermittent and variable timing of layer configuration and (c) multilayer multi-functionality. 3D FPGAs are applied to reprogrammable SoCs. | 2009-03-12 |
20090066366 | Reprogrammable three dimensional intelligent system on a chip - A high performance 3D semiconductor is described with cubic dimensional multi-node reprogrammable components for multi-functionality and intelligent behaviors. The system is modeled with dynamic EDA techniques. Applications of the intelligent SoC are specified, particularly embedded, multifunctional, DSP and high-performance computing applications. | 2009-03-12 |
20090066367 | INPUT OUTPUT DEVICE FOR MIXED-VOLTAGE TOLERANT - An input output device coupled between a core circuit and a pad and including an output cell, an input cell, and a pre-driver. The output cell includes an output stage and a voltage level converter. The output stage includes a first transistor and a second transistor connected to the first transistor in serial between a first supply voltage and a second voltage. The voltage level converter generates a first gate voltage to the first transistor according to the first voltage and a data signal. When the first supply voltage is increased, the first gate voltage is increased. When the data signal is at a high level, the first transistor is turned on. The input cell includes a pull unit and a first N-type transistor. The pre-driver turns off the first and the second transistors. | 2009-03-12 |
20090066368 | DIGITAL CALIBRATION CIRCUITS, DEVICES AND SYSTEMS INCLUDING SAME, AND METHODS OF OPERATION - A calibration circuit for matching the output impedance of a driver by calibrating adjustments to the driver is described. The calibration circuit includes a driver circuit with a plurality of calibration transistors configured to receive a plurality of adjustment signals. The calibration circuit also includes a comparator circuit, and a binary searcher. The driver provides a signal corresponding to an output impedance to the comparator circuit. The output impedance signal is compared to a target impedance, and the comparator circuit then provides logic signals to the binary searcher representing whether the output impedance is greater than the target impedance. The binary searcher then selects a type of step size and count direction, in response to the logic signals, to count the number of steps for adjusting the calibration transistors of the driver. | 2009-03-12 |
20090066369 | CLOCK GUIDED LOGIC WITH REDUCED SWITCHING - Methods and apparatuses for optimizing switching delay in integrated circuits are described. Combinational logic gates are modified with precharge circuitry and instantiated in order to reduce switching transitions of circuit elements in a signal path. | 2009-03-12 |
20090066370 | Track and Hold Circuit - Methods and apparatus are disclosed to track and hold a voltage. An example track and hold circuit comprises a first electronic switch, a second electronic switch, and a current mode logic amplifier. | 2009-03-12 |
20090066371 | BUFFER CIRCUIT WHICH OCCUPIES LESS AREA IN A SEMICONDUCTOR DEVICE - The present invention relates to a buffer circuit of a semiconductor memory device, and includes a common bias supply unit and a plurality of interface units having a differential amplifying structure. Each interface unit receives an input signal and differentially amplifies the input signal and a common bias. The common bias supply unit is driven by a reference voltage to provide the common bias signal to each of the interface units. The buffer circuit makes it possible to reduce the area occupied by the buffer circuit in a semiconductor memory device. | 2009-03-12 |
20090066372 | HIGH SPEED CMOS OUTPUT BUFFER FOR NONVOLATILE MEMORY DEVICES - An output CMOS buffer includes MOS enhancement transistors and has a second complementary pair of natural or low threshold transistors, connected respectively in parallel to transistors of opposite type of conductivity of the complementary pair of enhancement MOS transistors of the final buffer stage. The gate terminals of the pair of natural or low threshold transistors are controlled by respective inverters, each supplied through a slew rate limiter of the slope of the driving current and are respectively connected between the positive supply node of the output buffer and a negative (below ground potential) node and between the common ground node of the output buffer and a positive supply node. The negative voltage and the positive voltage on the nodes are at least equal to the absolute value of the threshold voltage of the natural or low threshold transistors. | 2009-03-12 |
20090066373 | DEVICE FOR ADJUSTING CHIP OUTPUT CURRENT AND METHOD FOR THE SAME - A device for adjusting chip output current and a method for the same are provided. The device includes: a driving circuit for outputting a driving current according to a control signal, wherein the driving current flows to a reference resistor in another chip so as to generate an output voltage; and a detecting circuit coupled to the driving circuit and adapted for detecting the output voltage and a reference voltage, so as to generate the control signal; wherein the control signal controls the number of parallel connections of NMOS transistors or PMOS transistors in the driving circuit, so as to adjust the magnitude of the driving current. | 2009-03-12 |
20090066374 | Drive circuit, light emitting diode head, and image forming apparatus - A drive circuit is provided for selectively driving a driven element. The drive circuit includes a discharge section for discharging charges, which are accumulated in the driven element when the drive element is turned on, when the drive element is turned off. The drive circuit may include a drive element for driving the driven element. The drive element includes a first ground route disposed separately from a second ground route of the driven element. The first ground route is connected to the second ground route through a connection cable. A diode may be disposed between the connection cable and at least one of the first ground route and the second ground route. | 2009-03-12 |
20090066375 | Switching control system and motor driving system - The present invention inexpensively controls a turn-on and turn-off switching speed for MOS transistors made in accordance with various specifications. According to the present invention, during an output voltage rise period for a turn-on operation of the MOS transistor, a fixed current determined by a first clip circuit and a resistor is input to a gate terminal of the MOS transistor to obtain a linear rise slew rate. During an output voltage drop period for a turn-off operation of the MOS transistor, a fixed current determined by a second clip circuit | 2009-03-12 |
20090066376 | Equalizing Transceiver With Reduced Parasitic Capacitance - A signaling circuit having reduced parasitic capacitance. The signaling circuit includes a plurality of driver circuits each having an output coupled to a first output node, and a plurality of select circuits each having an output coupled to a control input of a corresponding one of the driver circuits. Each of the select circuits includes a control input to receive a respective select signal and a plurality of data inputs to receive a plurality of data signals. Each of the select circuits is adapted to select, according to the respective select signal, one of the plurality of data signals to be output to the control input of the corresponding one of the driver circuits. | 2009-03-12 |
20090066377 | PULSE WIDTH MODULATION CIRCUIT AND SWITCHING AMPLIFIER USING THE SAME - A pulse width modulation circuit of the present invention changes a voltage of a charging circuit based on an input signal voltage and in synchronization with a first switching signal; changes, during a predetermined second period following a first period during which the voltage of the charging unit is changed, the voltage of the charging unit in an opposite direction to a direction in which the voltage is changed during the first period, based on a constant bias current; detects time starting from when the second period starts to when the voltage of the charging unit reaches a predetermined reference voltage; and generates, based on the detected time which is repeatedly output each time the first switching signal is output, a pulse signal having a pulse width of the time. | 2009-03-12 |
20090066378 | SOURCE DRIVER AND METHOD FOR RESTRAINING NOISE THEREOF - The present invention discloses a source driver and a method for restraining noise output by a source driver during power on/off of a power supply. The source driver includes a data bus, a plurality of channels, a multiplexer and a plurality of output pads. The channels are connected to the output pads via the multiplexer. Each channel has a latch unit. Data is transmitted on the data bus and stored in the latch units. The source driver is powered by a first supply voltage from the power supply. The method comprises determining whether the first supply voltage is insufficient, and if yes, performing the following steps. First, set the data transmitted on the data bus to be a predetermined value. Then, keep the latch units turned on, thereby the data is sent out from the latch units. Then, keep the multiplexer turned on for outputting a driving voltage based on the data via the output pads. | 2009-03-12 |
20090066379 | Delay Stage-Interweaved Analog DLL/PLL - A methodology is disclosed that enables the delay stages of an analog delay locked loop (DLL) or phase locked loop (PLL) to be programmed according to the operating condition, which may depend on the frequency of the input reference clock. The resulting optimized delay stages allow for a broad frequency range of operation, fast locking time over a wide range of input clock frequencies, and a lower current consumption at high clock frequencies. Better performance is achieved by allowing the number of analog delay stages active during a given operation to be flexibly set. The deactivation or turning off of unused delay stages conserves power at higher frequencies. The high frequency range of operation is increased by using a flexible number of delay stages for various input clock frequencies. Because of the rules governing abstracts, this abstract should not be used to construe the claims. | 2009-03-12 |
20090066380 | DOUBLE DATA RATE INTERFACE - The present invention relates to a double data rate interface and method for use between a processor and random access memory, comprising a delay line including means for creating a delay in a data strobe signal from the random access memory, the delay line being arranged such that the delay in the data strobe signal is equal to the sum of set-up time and data bus rise time. The interface of includes the delay line comprising the delay locked loop which in turn comprises a ring oscillator. The ring oscillator includes a buffer and a Vernier delay. | 2009-03-12 |
20090066381 | EDGE RATE CONTROL FOR I2C BUS APPLICATIONS | 2009-03-12 |
20090066382 | Digital Pulse-Width-Modulator with Discretely Adjustable Delay Line - A hybrid digital pulse width modulator (DPWM) with digital delay-locked loops (DLLs) is provided. In this implementation, the digital pulse-width-modulator is synthesizable and includes a digital delay-locked loop around a delay-line to achieve constant frequency clocked operation. In this implementation, the resolution of the modulator is consistent over a wide range of process or temperature variations. The DPWM may implement trailing-edge, leading-edge, triangular, or phase-shift modulation. In an implementation suitable for DC-DC converters with synchronous rectifiers, for example, the DPWM may include two or more outputs for programmable dead-times. In another implementation, a digital pulse-width-modulator with a digital phase-locked loop is also provided. | 2009-03-12 |
20090066383 | Apparatus and method for generating clock signal - An apparatus, including: a circuit which operates according to a clock signal, the circuit operating with a delay, and a clock generator which generates the clock signal with a duty ratio, the duty ratio being adapted to the delay. | 2009-03-12 |
20090066384 | SEMICONDUCTOR INTEGRATED CIRCUIT, PWM SIGNAL OUTPUT DEVICE, AND POWER CONVERSION CONTROL APPARATUS - Provided is a control technique of a PWM conversion type power converter capable of compensating for a voltage error due to voltage drop mainly at a switching element and managing a switching time of a PWM signal at the same time, and capable of suppressing increase/decrease of software operation load and addition of a hardware circuit to the minimum. A semiconductor integrated circuit having a PWM signal generating unit which generates a PWM signal is provided with a PWM timer unit including a counter counting a pulse width of a pulse signal inputted from the outside with delay from a PWM signal, a register loading a counter value of the counter in synchronization with the PWM signal, and an A/D converting unit converting an analog signal serving as a source signal of the pulse signal inputted from the outside to a digital signal. | 2009-03-12 |
20090066385 | LATCH DEVICE HAVING LOW-POWER DATA RETENTION - A latch of an integrated circuit is able to retain data at the latch when the integrated circuit is in a low-power mode. The latch retains data at a retention stage in response to assertion of an isolation signal. In response to a reference voltage supplied to the latch being restored to a normal operating voltage, indicating that the integrated circuit has transitioned from the low-power mode to a normal mode, a data restoration circuit provides the retained data at the output of the latch prior to negation of the isolation signal. This reduces the likelihood that a delay in negation of the isolation signal will result in the latch output providing incorrect data, thereby reducing the likelihood of the latch output causing errors in downstream elements of the integrated circuit. | 2009-03-12 |
20090066386 | MTCMOS FLIP-FLOP WITH RETENTION FUNCTION - There is provided a MTCMOS flip-flop configured to operate at high speed and to reduce leakage current while realizing a retention function in a sleep mode. The MTCMOS flip-flop may include a signal generator adapted to output an internal clock signal or a sleep mode control signal based on changes in a retention signal and an external clock signal, a master latch adapted to latch an input signal and to output a master latch output signal based on the internal clock signal, and a slave latch connected to an actual ground and adapted to latch the master latch signal, to output a slave latch output signal under control of the internal clock signal, and to maintain the latched signal under control of the sleep mode control signal in the sleep mode. | 2009-03-12 |